CVE-2022-27984
📋 TL;DR
CVE-2022-27984 is a critical SQL injection vulnerability in CuppaCMS v1.0 that allows attackers to execute arbitrary SQL commands via the menu_filter parameter. This affects all installations of CuppaCMS v1.0, potentially compromising the entire database and system. Attackers can exploit this without authentication to steal, modify, or delete sensitive data.
💻 Affected Systems
- CuppaCMS
📦 What is this software?
Cuppacms by Cuppacms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, remote code execution via database functions, and full system takeover.
Likely Case
Database information disclosure, authentication bypass, privilege escalation, and potential data manipulation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and web application firewall rules blocking SQL injection patterns.
🎯 Exploit Status
The vulnerability is in a publicly accessible administrator endpoint and requires no authentication. Exploitation is straightforward with common SQL injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch exists. Consider upgrading to a newer version if available, or implement workarounds and mitigations.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize the menu_filter parameter before processing.
Edit /administrator/templates/default/html/windows/right.php to implement parameterized queries or input filtering
Web Application Firewall Rules
allConfigure WAF to block SQL injection patterns targeting the vulnerable endpoint.
Add rule to block requests containing SQL keywords in menu_filter parameter
🧯 If You Can't Patch
- Restrict access to /administrator/ directory using IP whitelisting or authentication
- Disable or remove the vulnerable right.php file if functionality is not required
🔍 How to Verify
Check if Vulnerable:
Check if file exists at /administrator/templates/default/html/windows/right.php and examine code for unsanitized menu_filter parameter usage.Check Version:
Check CuppaCMS version in configuration files or admin panelVerify Fix Applied:
Test the vulnerable endpoint with SQL injection payloads to ensure they are blocked or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple requests to /administrator/templates/default/html/windows/right.php with suspicious parameters
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) in menu_filter parameter
SIEM Query:
source="web_logs" AND uri="/administrator/templates/default/html/windows/right.php" AND (param="menu_filter" AND value CONTAINS "SELECT" OR "UNION" OR "OR 1=1")